Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-07-12
2005-07-12
Le, Dang (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S090000
Reexamination Certificate
active
06917130
ABSTRACT:
A single thrust bearing fluid dynamic bearing (FDB) design, including a typical dynamic bearing design which has a ring-shaped or circular thrust plate mounted at or near the end of a shaft, wherein the shaft defines together with the surrounding sleeve a journal bearing by providing grooves on one of the two surfaces facing the gap between the shaft and sleeve. On the thrust plate, only one of the two surfaces is grooved to establish an active thrust bearing. The rotor is then biased against the single active thrust bearing with a constant force generated by a magnetic circuit.
REFERENCES:
patent: 4856918 (1989-08-01), Inoue et al.
patent: 5108198 (1992-04-01), Nii et al.
patent: 5280208 (1994-01-01), Komura et al.
patent: 5427456 (1995-06-01), Hensel
patent: 5524985 (1996-06-01), Dunfield
patent: 5541460 (1996-07-01), Dunfield et al.
patent: 5545937 (1996-08-01), Dunfield et al.
patent: 5561335 (1996-10-01), Dunfield et al.
patent: 5587617 (1996-12-01), Dunfield et al.
patent: 5598048 (1997-01-01), Dunfield et al.
patent: 5675201 (1997-10-01), Komura et al.
patent: 5806987 (1998-09-01), Nose et al.
patent: 5835124 (1998-11-01), Fukita et al.
patent: 6066903 (2000-05-01), Ichiyama
patent: 6071014 (2000-06-01), Lee et al.
patent: 6183135 (2001-02-01), Aiello et al.
patent: 6307293 (2001-10-01), Ichiyama
patent: 62 037514 (1987-02-01), None
International Search Report mailed on Sep. 11, 2003, for PCT patent Appl. No. PCT/US03/15509 filed on May 14, 2003, 7 pages.
Aiello Anthony J.
Kloeppel Klaus D.
Le Dang
Morrison & Foerster / LLP
Seagate Technology LLC
LandOfFree
Top cover attachable fluid dynamic bearing motor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Top cover attachable fluid dynamic bearing motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Top cover attachable fluid dynamic bearing motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3402881